<template>
  <div class="wrapper">
    <swiper :options="swiperOption" v-if="showSwiper" >
      <swiper-slide v-for="item of List" :key="item.id"><img class="swiper-img" :src="item.imgUrl" alt=""></swiper-slide>
      <div class="swiper-pagination"  slot="pagination"></div>
    </swiper>
  </div>
  
</template>

<script>
export default {
    name:'HomeSwiper',
    props:{
      List:Array
    },
    data () {
      return {
        swiperOption:{
          pagination: '.swiper-pagination',
          loop:true
        },
      }
    },
    computed: {
      showSwiper () {
        return  this.List.length
      }
    }
}
</script>

<style lang="stylus" scoped>
  .wrapper >>> .swiper-pagination-bullet-active
    background-color #fff
  .wrapper
    width 100%
    height 0
    overflow hidden
    padding-bottom 31.25% 
    .swiper-img
      width 100%
</style>